Hydraulic swivel.



a G". JGHNSTON. HYDRULIG SWIVEL.

APPLIGATIQN FILED szmtzs, 1908.

.Pateme flug. 3%@

end of the swivel stem and foln'iings recess between such boss and the hose stem, s, follower embracing the hose stern and provided with means for exerting pressure upon the packing, s. csp engaged upon the boss, s. ball rece carried within thecep and embracing the hose stem and roportioned to exert pressure upon the tioned bell race, and balls interposed between the bell races. 4. Ina swivel, a. swivel stem, s. hose stem inserted. within the swivel stem, a member embracing the swivel stem and provided with en annuler screw-thresded boss extending beyond the end of the swivel stem sud forming en annular recess between the boss end the hose stern, s. pecking disposed Within the annuler recess, a ollower provided with en annuler ring embracing the hose stern and bearing upon the pecking, e. cap

covering the follower and engaging the screw threads ofthe embracing member, e ball rece member vdisposed within the ce. and edspted to exert pressure upon the fo ower, a bell fo ower, e ball rece emr racing the hose stem within the firstmenf eef-,958 i rie/cey member disposed within the first-men e bell 'rece registering with the rece of the.

stan ing boss, a follower within the cap hov- 'f ing en annuler ring,

e ball roce member rigidly carried by the csp for engaging the follower, a hose stem inserted through the cap,

the follower and into the swivel stem, and a ball race member rigidly 'secured to the swivel stem. end disposed in op osition to the first-mentioned bell rece mem er.

In testimony whereof'ln'lix my signature in presence of two witnesses.

HORACE o. JOHNSTON.

Witnesses: i A

W. J. HALL,

M. WESTMORELAND. 

